
The Isle of the Dead is the gateway to Annwn, the Underworld of the Goddess, where the souls of the deceased await rebirth. The guardian of its entrance is Arawn or Gwyn ap Nudd – Gwyn son of Nudd or Ludd, the annual year king sacrifice now united with His Goddess. Gwyn is also Heme the Hunter, the Oak King and Cernunnos the Stag God. It is said that on Midsummer Night's Eve Gwyn rides out across Glastonbury Tor with the red-eared white dogs of the Wild Hunt of Annwn, sweeping in the souls of the dead to the Cauldron of the Dark Mother.
Today the sea and tidal lakes which once surrounded the Western Isle have been drained away. The seashore now lies 18 miles away to the west across the flat Summerland meadows, which are criss-crossed with rivers and small drainage canals, known as rhynes.
But when it rains heavily, the water in the rivers and rhynes rises quickly, spilling over the low banks and flooding out into the pastureland. The sea returns once more and again this Western Isle of the Dead rises out from the water and is visible for all to see.
Source: Isle Of Avalon